CVE-2026-2202 Tenda AC8 httpd WifiGuestSet fromSetWifiGusetBasic buffer overflow
A remote attacker can trigger a buffer overflow in the Tenda AC8 router's httpd service via the shareSpeed parameter, potentially leading to code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2202?
CVE-2026-2202 is a high-severity memory corruption vulnerability in Tenda Ac8 Firmware, published on 9 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in Tenda AC8 16.03.33.05. Affected is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet of the component httpd. The manipulation of the argument shareSpeed results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.
Which versions are affected by CVE-2026-2202?
It affects 1 product.
Products include Tenda Ac8 Firmware.
How do I fix CVE-2026-2202?
No fix has been published for CVE-2026-2202 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-2202 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2202 exists.
Other vulnerabilities in Tenda Ac8 Firmware
Sources
Also known as GHSA-7c2w-rcv7-7qf9.